WO2024051357A1

WO2024051357A1 - Electric motor base, electric motor and high-speed fan

Info

Publication number: WO2024051357A1
Application number: PCT/CN2023/108377
Authority: WO
Inventors: 张平; 胡善显; 孙兴林; 周慧珠; 孙叶琳; 骆兰英
Original assignee: 续新技术(深圳)集团有限公司
Priority date: 2022-09-09
Filing date: 2023-07-20
Publication date: 2024-03-14
Also published as: CN116317310A

Abstract

Disclosed in the present invention are an electric motor base, an electric motor and a high-speed fan. The electric motor base comprises a first housing, a second housing and guide vanes. The guide vanes are located between the first housing and the second housing, and are distributed at intervals in the circumferential direction of the first housing. Adjacent guide vanes define a first air duct. Each guide vane comprises a first air guide portion and a second air guide portion. The first air guide portion and the second air guide portion are distributed at an interval in the circumferential direction, and define an air guide cavity. The high-speed fan and the electric motor each comprise the electric motor base. In the present invention, the distance between two side faces of the guide vanes in the circumferential direction is increased, and vibrations of the guide vanes during airflow collisions can be reduced, thereby facilitating noise reduction. Moreover, areas on leeward sides of the guide vanes close to an air outlet are closer to areas on air intake side of the adjacent guide vanes close to the air outlet, so that air pressure areas and turbulence of an airflow can be reduced, and the energy loss of the airflow in the first air ducts is thus reduced. Therefore, the air pressure and air speed of the fan can be improved.

Description

Motor base, motor and high-speed fan

Technical field

The present invention relates to the field of motor technology, and in particular to a motor base, a motor and a high-speed fan.

Background technique

The guide vanes in the motor base play a role in axially guiding the air flow. When the motor is used in a high-speed fan, the high-speed air flow generates friction with the wall surface of the guide vanes, causing the guide vanes to vibrate at high frequencies and generate noise. In addition, the guide vanes There is an air pressure area on the leeward side. The turbulent flow formed by the spiral air flow in the air pressure area causes impact loss of the air flow, affects the axial direction of the air flow after it is exported, and reduces the wind pressure and wind speed of the fan.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a motor base that can reduce the noise of the guide blades and increase the wind pressure and wind speed of the fan.

The invention also proposes a motor having the above motor base.

The invention also proposes a high-speed fan with the above motor.

The motor base according to the first embodiment of the present invention includes:

first shell;

a second housing, surrounding the outside of the first housing;

Guide vanes are located between the first housing and the second housing. There are multiple guide vanes and they are distributed along the circumferential direction of the first housing. Two opposite guide vanes Sides are connected to the first housing and the second housing respectively, and the adjacent guide vanes define a first air channel. The guide vanes include a first air guide part and a second air guide part, at least partially The first air guide portion and at least part of the second air guide portion are spaced apart along the circumference of the first housing and define an air guide cavity.

The motor base according to the embodiment of the present invention has at least the following beneficial effects:

The motor base in the embodiment of the present invention divides the guide vane into two parts in the circumferential direction. There is an air guide cavity between the first air guide part and the second air guide part, which enlarges the space between the two sides of the guide vane in the circumferential direction. distance, the overall structural strength of the guide vane is improved, which can reduce the vibration of the guide vane when the airflow collides, which is beneficial to reducing noise, and the area on the leeward side of the guide vane close to the air outlet is closer to the area on the inlet side of the adjacent guide vane close to the air outlet. , can reduce the turbulence of the air pressure area and air flow, reduce the energy loss of the air flow in the first air duct, thereby increasing the wind pressure and wind speed of the fan.

According to some embodiments of the present invention, the guide vane is detachably connected to the first housing, and/or the guide vane is detachably connected to the second housing.

According to some embodiments of the present invention, two ends of the first housing and the second housing respectively define an air inlet and an air outlet, and two ends of the first air duct are respectively connected to the air inlet and the air outlet. The air outlet is connected, one end of the first air guide part and the second air guide part facing the air inlet are attached to each other in the circumferential direction of the first housing, the first air guide part and the One end of the second air guide portion facing the air outlet is spaced apart from each other in the circumferential direction of the first housing.

According to some embodiments of the present invention, two ends of the first housing and the second housing respectively define an air inlet and an air outlet, and two ends of the first air duct are respectively connected to the air inlet and the air outlet. The air outlet is connected. Along the direction of the air inlet toward the air outlet, the distance between the surfaces of the first air guide part and the second air guide part that are away from each other in the circumferential direction of the first housing gradually increases. big.

According to some embodiments of the present invention, the first air guide part includes a first bending section and a first axial flow section distributed along the axial direction of the first housing, and the second air guide part includes a first air guide section along the axial direction of the first housing. The second bending section and the second axial flow section are axially distributed in the first housing, and the first bending section and the second bending section are bent along the circumferential direction of the first housing, and the The extending directions of the first axial flow section and the second axial flow section are parallel to the axial direction of the first housing.

According to some embodiments of the present invention, the first bending section and the second bending section are attached to each other in the circumferential direction of the first housing, and the first axial flow section and the second axial flow section are attached to each other in the circumferential direction of the first housing. The flow sections are spaced apart from each other in the circumferential direction of the first housing.

According to some embodiments of the present invention, the first air guide portion is located on the windward side of the guide vane, and the curvature of the connection between the first bending section and the first axial flow section is greater than that between the second bending section and the first axial flow section. The curvature of the connection point of the second axial flow section.

A motor according to a second embodiment of the present invention includes:

The motor base of the first embodiment;

Stator, the first housing ring is arranged on the outside of the stator, the stator is connected with a lead wire, one side of the air guide cavity penetrates to the outside of the second housing and forms an opening, the lead wire Lines are passed through the air guide cavity and the opening;

Rotating shaft, the stator ring is arranged on the outside of the rotating shaft.

According to some embodiments of the present invention, the motor further includes an elastic member, a limiting member and two support members spaced apart along the axial direction of the rotating shaft. Both ends of the elastic member are respectively in contact with the two support members. Then, part of the rotating shaft is located outside the stator and passes through the supporting member. The rotating shaft is rotationally connected to the supporting member. The supporting member, the elastic member and the limiting member are all accommodated. In the first housing, one end of one of the supporting members facing away from the stator is in contact with the first housing in the axial direction of the rotating shaft, and the other end of the supporting member faces the stator. One end is in contact with the limiting member in the axial direction of the rotating shaft.

A high-speed fan according to the third embodiment of the present invention includes:

The motor of the second embodiment;

The impeller is located inside the second housing, and part of the rotating shaft penetrates to the outside of the first housing and is connected to the impeller.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples, wherein:

Figure 1 is a schematic structural diagram of an embodiment of the motor base of the present invention;

Figure 2 is a bottom view of the motor base shown in Figure 1;

Figure 3 is a schematic diagram of an embodiment of a guide vane;

Figure 4 is a cross-sectional view of the motor base shown in Figure 1;

Figure 5 is a schematic diagram of another embodiment of the guide vane;

Figure 6 is a cross-sectional view of an embodiment of the motor of the present invention;

Figure 7 is a schematic diagram of the air guide shown in Figure 6;

Figure 8 is a schematic diagram of an embodiment of the fan according to the present invention.

Reference signs:

Motor base 100, first housing 110, mounting part 111, second housing 120, opening 121, guide vane 130, first air guide part 131, second air guide part 132, air guide cavity 133, first air duct 140, air inlet 150, air outlet 160; stator 200, rotating shaft 300; elastic member 400; limiting member 500; support member 600; air guide 700, third housing 710, fourth housing 720, air guide partition 730, second air duct 740; impeller 800.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and cannot be understood as limiting the present invention.

In the description of the present invention, it should be understood that orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or position relationships shown in the drawings and are only In order to facilitate the description of the present invention and simplify the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, several means one or more, plural means two or more, greater than, less than, more than, etc. are understood to exclude the original number, and above, below, within, etc. are understood to include the original number. If there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features. relation.

In the description of the present invention, unless otherwise explicitly limited, words such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

In the description of the present invention, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" is intended to be in conjunction with the description of the embodiment. or examples describe specific features, structures, materials, or characteristics that are included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in Figures 1 and 2, an embodiment of the present invention provides a motor base 100. The motor base 100 includes a first housing 110, a second housing 120 and a guide vane 130. The second housing 120 is surrounded by Outside the first housing 110, the first housing 110 and the second housing 120 are spaced apart in the radial direction, and the guide vanes 130 are located between the first housing 110 and the second housing 120. The guide vanes 130 are used for The airflow is guided; a plurality of guide vanes 130 are provided, and the plurality of guide vanes 130 are distributed along the circumferential direction of the first housing 110. The guide vanes 130 are respectively connected to the first housing 110 and the second housing on radially opposite sides. The housing 120 and adjacent guide vanes 130 define a first air channel 140 , and the airflow entering the first air channel 140 is blown out in the axial direction under the guidance of the guide vanes 130 . Further, the guide vane 130 includes a first air guide part 131 and a second air guide part 132. At least part of the first air guide part 131 and at least part of the second air guide part 132 are spaced apart along the circumferential direction of the first housing 110. distributed, and define an air guide cavity 133.

Normally, the airflow is guided by the guide vanes 130 and gradually flows from the air inlet side to the outlet side. When the speed of the air flow is high, the air flow is not easy to change direction. The area on the leeward side of the guide vanes 130 close to the air outlet 160 is prone to generate an air pressure zone. The air flow easily generates turbulence in the air pressure zone, and the collision between the air flow and the guide vanes 130 increases. The impact loss of the air flow in the first air duct 140 results in a reduction in the wind pressure and wind speed of the air flow at the air outlet 160 . Therefore, in the embodiment of the present application, the guide vane 130 is divided into two parts in the circumferential direction, and there is an air guide cavity 133 between the first air guide part 131 and the second air guide part 132, so that the guide vane 130 is enlarged. The distance between the two sides in the circumferential direction increases the overall structural strength of the guide vane 130, which can reduce the vibration of the guide vane 130 when the airflow collides, which is beneficial to reducing noise, and the area on the leeward side of the guide vane 130 close to the air outlet 160 is more The area close to the air inlet side of the adjacent guide vane 130 and close to the air outlet 160 can reduce the air pressure zone and turbulence of the air flow, reduce the energy loss of the air flow in the first air duct 140, thereby increasing the wind pressure and wind speed of the fan. .

After the high-speed airflow enters the first air duct 140, it first contacts the windward side of the guide vanes 130, and gradually flows in the axial direction under the guidance of the guide vanes 130. Based on this, in one embodiment of the present invention, as shown in Figure 3 , the first air guide part 131 is located on the guide vane On the windward side of 130, the thickness of the first air guide part 131 in the circumferential direction of the first housing 110 is greater than the thickness of the second air guide part 132 in the circumferential direction of the first housing 110; by increasing the thickness of the windward side of the guide vane 130, The vibration of the first air guide part 131 caused when the high-speed airflow impacts the first air guide part 131 can be reduced, which is beneficial to reducing noise.

As shown in FIG. 4 , two ends of the first housing 110 and the second housing 120 respectively define an air inlet 150 and an air outlet 160 , and both ends of the first air duct 140 are respectively connected to the air inlet 150 and the air outlet 160 . The airflow enters the first air duct 140 through the air inlet 150, is discharged from the air outlet 160 under the guidance of the guide vanes 130 located in the first air duct 140, and flows along the axial direction.

In one embodiment, as shown in FIG. 3 , one end of the first air guide part 131 and the second air guide part 132 facing the air inlet 150 is attached to each other in the circumferential direction of the first housing 110 . The first air guide part 131 One end of the second air guide portion 132 facing the air outlet 160 is spaced apart from each other in the circumferential direction of the first housing 110 . Therefore, the air guide cavity 133 is closed on the side facing the air inlet 150 to prevent the airflow from entering the air guide cavity 133 to form turbulence and cause airflow energy loss, and the overall thickness of the guide vane 130 is increased on the side of the air outlet 160. It can reduce the air pressure area and turbulence, and increase the wind pressure and speed of the air flow.

In another embodiment, along the direction from the air inlet 150 toward the air outlet 160 , the distance between the surfaces of the first air guide portion 131 and the second air guide portion 132 that are away from each other gradually increases in the circumferential direction of the first housing 110 , so that Increasing the thickness of the guide vanes 130 on the air outlet side effectively reduces the air pressure area of the guide vanes 130 and the airflow energy loss caused by turbulence. It should be noted that the change in the distance between the surfaces of the first air guide part 131 and the second air guide part 132 that are away from each other may be that the first air guide part 131 and the second air guide part 132 have the same thickness, and the first air guide part 131 and the second air guide part 132 have the same thickness. The distance between the surfaces of the air portion 131 and the second air guide portion 132 that are close to each other increases; or, the distance between the surfaces of the first air guide portion 131 and the second air guide portion 132 that are close to each other increases and the distance between the surfaces of the second air guide portion 132 that are close to each other increases. The thickness of the air guide part 132 remains unchanged, and the thickness of the first air guide part 131 gradually increases; or, the thickness of the second air guide part 132 remains unchanged, and the surfaces of the first air guide part 131 and the second air guide part 132 are close to each other. The distance between them and the thickness of the first air guide part 131 gradually increase.

The airflow entering from the air inlet 150 has a certain partial velocity in the circumferential direction. In order to facilitate the guide vane 130 to guide the airflow and ensure the axial direction of the airflow after it is blown out, the area of the guide vane 130 close to the air inlet 150 is set in a bent shape. The area of the guide vanes 130 close to the air outlet 160 is arranged in a straight line and extends along the axial direction; therefore, after the airflow enters the first air duct 140, it is first guided by the guide vanes 130 on the air inlet side and gradually reduces the circumferential direction of the airflow. speed to gradually lead the airflow along the axial direction. As the airflow continues to flow, the airflow is finally guided by the outlet-side guide vanes 130 to flow along the axis and is blown out from the air outlet 160 .

Specifically, as shown in FIG. 5 , the first air guide part 131 includes a first bending section 1311 and a first axial flow section 1312 distributed along the axial direction of the first housing 110 , and the second air guide part 132 includes a first air guide section 131 along the axial direction of the first housing 110 . The second axially distributed second bending section 1321 and the second axial flow section 1322 of the second housing 120 are arranged close to the air inlet side. The first axial flow section 1312 and the second axial flow section 1321 are arranged close to the air inlet side. The two axial flow sections 1322 are arranged close to the air outlet side. The first bending section 1311 and the second bending section 1321 are bent along the circumferential direction of the first housing 110 to weaken the circumferential speed of the airflow and gradually guide the airflow along the axial direction. , the first axial flow section 1312 and the second axial flow The extension direction of the segment 1322 is parallel to the axial direction of the first housing 110 to ensure the axial direction of the air flow after it is blown out from the air outlet 160 .

Furthermore, the first bending section 1311 and the second bending section 1321 are attached to each other in the circumferential direction of the first housing 110 , and the first axial flow section 1312 and the second axial flow section 1322 are in contact with each other in the circumferential direction of the first housing 110 . Spaced upwards from each other. On the one hand, the side of the air guide cavity 133 facing the air inlet 150 is closed to prevent airflow from entering the air guide cavity 133 and forming turbulent flow. On the other hand, the entire first bending section 1311 and the second bending section 1321 are in contact with each other. Attached, the overall structural strength of the guide vane 130 can be improved, the vibration amplitude of the guide vane 130 can be reduced, and the noise can be reduced.

In one embodiment, the first air guide part 131 is located on the windward side of the guide vane 130, the second air guide part 132 is located on the leeward side of the guide vane 130, and the connection between the first bending section 1311 and the first axial flow section 1312 is The curvature is greater than the curvature at the connection between the second bending section 1321 and the second axial flow section 1322; therefore, the transition from the second bending section 1321 located on the leeward side to the second axial flow section 1322 is smoother, and the airflow can easily follow the second bend. The folded section 1321 flows to the second axial flow section 1322, and the air pressure zone is not easily generated on the leeward side of the guide vane 130, which can reduce the flow loss of the airflow.

It is conceivable that the guide vane 130, the first housing 110 and the second housing 120 are integrally connected, and the motor base 100 is integrally formed by injection molding; or, the guide vane 130 and the first housing 110 and the guide vane 130 It is detachably connected to the second housing 120. The outer wall of the first housing 110 or the inner wall of the second housing 120 is provided with a groove for the guide vane 130 to be inserted or other concave and convex structures formed to cooperate with the guide vane 130. The first housing 110 , the second housing 120 and the guide vane 130 are assembled together to form the motor base 100 , which facilitates the processing of the guide vane 130 , the first housing 110 and the second housing 120 , and can reduce the processing cost of the motor base.

Referring to Figure 6, an embodiment of the present invention also provides a motor, including the above-mentioned motor base 100. The air guide cavity 133 extends along the radial direction of the first housing 110 and penetrates to the outside of the second housing 120, so as to An opening 121 is formed on the outside of the second housing 120. The motor also includes a stator 200 and a rotating shaft 300. The first housing 110 is ringed outside the stator 200, and the stator 200 is ringed outside the rotating shaft 300. The stator 200 is connected to The lead wire is passed through the air guide cavity 133 and the opening 121 and is led out from the opening 121. After the lead wire is connected to an external power source, it provides power for the rotation of the rotating shaft 300.

Usually, the lead wires of the windings in the stator 200 are led out from the axial end of the stator 200. When the end of the stator 200 needs to be installed in conjunction with other components, the connection of the lead wires makes the assembly of the stator 200 and other components more complicated and increases the size. This reduces assembly difficulty; in this embodiment, since there is an air guide cavity 133 inside the guide vane 130, the lead wire can directly use the air guide cavity 133 to lead the wire, and lead it out from the opening 121 to realize the side lead wire, while ensuring the first air duct 140 Under the premise of the wind pressure and wind speed of the internal air flow, the defect of complicated assembly of the stator 200 due to the lead-out of the motor lead wires is overcome.

It should be noted that the radial direction, axial direction and circumferential direction of the first housing 110, the second housing 120, the rotating shaft 300, the stator 200 and the guide vane 130 are the same, and the above-mentioned radial direction, axial direction and circumferential direction can all be based on the first The housing 110, the second housing 120, the rotating shaft 300, the stator 200 or the guide vane 130 are used as references. The opening 121 of the second housing 120 is connected with the air guide cavity 133, which can simplify the motor base. 100 manufacturing process, the motor base 100 can be processed by one-piece molding such as injection molding, which is beneficial to reducing the processing cost of the motor base 100.

In addition, in order to facilitate the extraction of the lead wire, a radially penetrating through hole can be provided on the first housing 110, and the through hole and the opening 121 are respectively connected to both sides of the air guide cavity 133, so that the stator located inside the first housing 110 can The lead wire of 200 is introduced into the air guide cavity 133 from the through hole.

As shown in Figure 6, the motor also includes an elastic member 400, a limiting member 500, and two support members 600 spaced apart along the axial direction of the rotating shaft 300. Both ends of the elastic member 400 are respectively in contact with the two support members 600, and part of them is in contact with the two support members 600. The rotating shaft 300 is located outside the stator 200. The rotating shaft 300 exposed outside the stator 200 is inserted into the supporting member 600 and is rotationally connected with the supporting member 600. The supporting member 600, the elastic member 400 and the limiting member 500 are all accommodated in the first shell. In the body 110, the outer wall of the support member 600 is in radial contact with the inner wall of the first housing 110. The inner wall of the support member 600 is rotationally connected to the rotating shaft 300. The first housing 110 is provided with a mounting portion at one end facing away from the stator 200. 111. The mounting part 111 is for the rotating shaft 300 to pass through and provides resistance to the supporting member 600. One end of one of the supporting members 600 facing away from the stator 200 is in contact with the mounting part 111 in the axial direction of the rotating shaft 300, and the other supporting member 600 is in contact with the mounting part 111. One end of 600 facing the stator 200 is in contact with the limiting member 500 in the axial direction of the rotating shaft 300. The limiting member 500 cooperates with the inner wall of the first housing 110 to achieve axial alignment of the elastic member 400 and the two supporting members 600. limit.

Specifically, when the support member 600, the limiting member 500, the elastic member 400 and the rotating shaft 300 are assembled, one of the support members 600, the elastic member 400 and the other support member 600 are placed in the first housing 110 in sequence. Under the action of the elastic force of 400, the axial distance between the two supports 600 can change, which facilitates the installation of the limiting member 500 into the first housing 110; after the limiting member 500 is installed into the first housing 110, the elastic force Under the elastic force of the member 400, the two support members 600 are in contact with the mounting part 111 and the limiting member 500 respectively, so that the support member 600 is firmly installed in the first housing 110.

It is conceivable that the support member 600 can be selected as a bearing, and the two bearings can cooperate with each other to prevent the axial movement of the rotating shaft 300 , and the limiting member 500 can be selected as a circlip.

Referring to Figures 6 and 7, the motor also includes an air guide 700. The air guide 700 is connected to an end of the motor base 100 facing the air outlet 160. The air guide 700 includes a third housing 710, a fourth housing 720 and an air guide. The partition 730 and the fourth housing 720 are arranged around the outside of the third housing 710. The air guide partition 730 is located between the third housing 710 and the fourth housing 720. The two radially opposite air guide partitions 730 The ends are respectively connected to the outer wall of the third housing 710 and the inner wall of the fourth housing 720. There are multiple air guide partitions 730. The plurality of air guide partitions 730 are spaced apart along the circumferential direction. The air guide partitions 730 are arranged along the axis. Extending in the direction, second air ducts 740 are defined between adjacent air guide partitions 730. The number and arrangement of the air guide partitions 730 and the guide vanes 130 are the same. Each first air duct 140 is connected to a second air duct 740. The ducts 740 are connected, and the air flow drawn from the air outlet 160 enters the second air duct 740 and is discharged from the second air duct 740 .

The third housing 710 is ring-mounted outside the stator 200 and can fix part of the stator 200 to ensure the installation of the stator 200. Strength, and by adding the second air duct 740, the axiality of the airflow can be further improved. In addition, the air guide partition 730 abuts the guide vane 130 in the axial direction, and blocks the air guide cavity 133 toward one side of the air guide partition 730. On the one hand, it is convenient to fix the lead wire, and on the other hand, it avoids increasing the number of leads. The strength of the air outlet side of the guide vane 130 reduces vibration and noise.

It should be noted that the air guide tube 700 can be fixed to the end of the motor base 100 by bonding or threaded connection. Taking threaded connections as an example, threaded fasteners are threaded through the first housing 110 and the third housing 710 , and/or threaded fasteners are threaded through the second housing 120 and the fourth housing 720 . After the fasteners are locked, the assembly of the air guide 700 and the motor base 100 can be realized; the air guide 700 and the motor base 100 are assembled through threaded connection, which facilitates the disassembly, assembly and later maintenance of the air guide 700 and the motor base 100 .

As shown in Figure 8, the present invention also provides a fan, which includes the above-mentioned motor and an impeller 800. One end of the rotating shaft 300 passes through the mounting part 111 of the first housing 110 and is connected to the impeller 800. The impeller 800 is located at Inside the second housing 120, when the rotation of the rotating shaft 300 drives the impeller 800 to rotate, external air enters the second housing 120 and generates airflow under the rotation of the impeller 800. The airflow enters the first air duct 140 through the air inlet 150. After being guided by the guide vanes 130, the air enters the second air channel 740 from the air outlet 160 and then is discharged.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various modifications can be made without departing from the purpose of the present invention. Variety. In addition, the embodiments of the present invention and the features in the embodiments may be combined with each other without conflict.

Claims

The motor base is characterized by including:

first shell;

a second housing, surrounding the outside of the first housing;

Guide vanes are located between the first housing and the second housing. There are multiple guide vanes and they are distributed along the circumferential direction of the first housing. Two opposite guide vanes Sides are connected to the first housing and the second housing respectively, and the adjacent guide vanes define a first air channel. The guide vanes include a first air guide part and a second air guide part, at least partially The first air guide portion and at least part of the second air guide portion are spaced apart along the circumference of the first housing and define an air guide cavity.
The motor base according to claim 1, wherein the guide vane is detachably connected to the first housing, and/or the guide vane is detachably connected to the second housing.
The motor base according to claim 1, wherein the two ends of the first housing and the second housing respectively define an air inlet and an air outlet, and the two ends of the first air duct are respectively connected to The air inlet and the air outlet are connected, the first air guide part and the second air guide part are attached to each other in the circumferential direction of the first housing toward the air inlet, and the first air guide part and the second air guide part are attached to each other in the circumferential direction of the first housing. An air guide part and an end of the second air guide part facing the air outlet are spaced apart from each other in the circumferential direction of the first housing.
The motor base according to claim 1, wherein the two ends of the first housing and the second housing respectively define an air inlet and an air outlet, and the two ends of the first air duct are respectively connected to The air inlet and the air outlet are connected. Along the direction of the air inlet toward the air outlet, the surfaces of the first air guide part and the second air guide part that are away from each other are on the first housing. The distance in the circumferential direction gradually increases.
The motor base according to claim 1, wherein the first air guide part includes a first bending section and a first axial flow section distributed along the axial direction of the first housing, and the second The air guide part includes a second bending section and a second axial flow section distributed along the axial direction of the first housing. The first bending section and the second bending section are distributed along the axial direction of the first housing. The first axial flow section and the second axial flow section are bent in a circumferential direction, and the extending direction of the first axial flow section and the second axial flow section is parallel to the axial direction of the first housing.
The motor base according to claim 5, wherein the first bending section and the second bending section are attached to each other in the circumferential direction of the first housing, and the first axial flow section and the second axial flow section are spaced apart from each other in the circumferential direction of the first housing.
The motor base according to claim 5, characterized in that the first air guide part is located on the windward side of the guide vane, and the curvature of the connection between the first bending section and the first axial flow section is greater than the curvature of the first bending section. The curvature of the connection between the second bending section and the second axial flow section.
The motor is characterized by including:

The motor base according to any one of claims 1 to 7;

Stator, the first housing ring is arranged on the outside of the stator, the stator is connected with a lead wire, one side of the air guide cavity penetrates to the outside of the second housing and forms an opening, the lead wire Lines are passed through the air guide cavity and the opening;

Rotating shaft, the stator ring is arranged on the outside of the rotating shaft.
The motor according to claim 8, characterized in that the motor further includes an elastic member, a limiting member and two support members spaced apart along the axial direction of the rotating shaft, and the two ends of the elastic member are respectively connected to two The support member abuts, part of the rotation shaft is located outside the stator and passes through the support member, the rotation shaft is rotationally connected to the support member, the support member, the elastic member and the limiter are The positioning members are all accommodated in the first housing. One end of one of the supporting members facing away from the stator is in contact with the first housing in the axial direction of the rotating shaft. The other supporting member is One end facing the stator is in contact with the limiting member in the axial direction of the rotating shaft.
High-speed blower is characterized by including:

A motor as claimed in claim 8 or 9;

The impeller is located inside the second housing, and part of the rotating shaft penetrates to the outside of the first housing and is connected to the impeller.